Product Function: as568-230 o-ring buna-n are components used for static or dynamic sealing, preventing liquid or gas leakage by deforming elastically when compressed within a groove. Characteristics: With its moderate 70A hardness and standard dimensions, it is suitable for static sealing and low-speed dynamic sealing in hydraulic, pneumatic, water pump, valve, compressor, automotive, and construction machinery equipment. Premium Material: This buna-n nitrile 70 duro O-ring is crafted from premium material with 70A hardness, offering excellent oil resistance, wear resistance, sealing performance, good elasticity, and extended service life. Replacement Timing: Immediately replace the O-ring when it shows signs of aging, hardening, cracking, deformation, wear, reduced elasticity, leakage, or seal failure. For prolonged use in oil or pressurized environments, regular inspection and replacement are recommended to ensure sealing effectiveness and safe equipment operation. Easy Installation: Before installation or replacement, thoroughly clean and lubricate the groove and sealing surface. When installing the O-ring, push it evenly into the groove without twisting. Never use sharp tools to force it into place. After installation, conduct a low-pressure test first. Only proceed with normal operation after confirming no leakage.